German made is easier to achieve... Alot of Affordable german made watches are actually china made
to achieve Swiss made, it must be assembled by Swiss trained watchmaker in Swiss and 50% of the value of the part of the watch must be Swiss made as well, so u need likely the Swiss movement to be Swiss made!
That's on affordable watch but on luxury brand, where it made not really making any big different!
Because big brand normally has it own DNA, character, phylosophy.... In it's design, Market positioning strategy, level/type/patented of finishing...
So I do think your topic is wide... It's difficult to compare, ontop of that now so many brands from other nation is made in Swiss, pam with Italian soul is Swiss made, US brand ball also Swiss made...
So Unless u narrow down your topic or else difficult to say
let say
german vs Swiss dive mechanical watch
patek vs Lange
geneva vs glashutte
iwc is Swiss or german?